MEETING PUBLIC EXPECTATIONS WITH ECOLOGICAL INNOVATION IN RIPARIAN LANDSCAPES1

ABSTRACT: Appearances matter for managing riparian landscapes because the appearance of landscapes affects public willingness to accept plans and designs that improve ecological quality. Riparian landscape design and planning should respect and strategically incorporate characteristics that the public values and expects to see. Such design can be quite novel in its ecological effects, but it also should be sufficiently familiar in appearance to correspond with cultural values. This paper describes some influential cultural values for riparian landscapes and demonstrates how attention to such values supports public acceptance of ecologically innovative design in rural and urban watersheds.     

二龙山水库流域生态治理模式研究

根据对二龙山水库东岸生态治理的研究,阐述了二龙山水库生态治理中如何把工程措施和生态措施有机地结合起来,从根本上解决该地区的水土流失、环境恶化等生态问题的生态治理模式,以求为库区流域生态治理提供参考.      

衡阳市蔬菜品种及产业发展研究报告

为了及时掌握衡阳市蔬菜产业发展动态,有效的指导衡阳市蔬菜生产,笔者对2006年衡阳市蔬菜品种及产业发展情况进行了调查,主要是摸清蔬菜品种,找出存在的主要问题,提出了下一步蔬菜品种及产业发展措施,把衡阳市蔬菜生产推向一个新的发展水平．表10,参7．     

Prospective spatial prediction of infectious disease: experience of New York State (USA) with West Nile Virus and proposed directions for improved surveillance

Infectious disease surveillance has become an international top priority due to the perceived risk of bioterrorism. This is driving the improvement of real-time geo-spatial surveillance systems for monitoring disease indicators, which is expected to have many benefits beyond detecting a bioterror event. West Nile Virus surveillance in New York State (USA) is highlighted as a working system that uses dead American Crows (Corvus brachyrhynchos) to prospectively indicate viral activity prior to human onset. A cross-disciplinary review is then presented to argue that this system, and infectious disease surveillance in general, can be improved by complementing spatial cluster detection of an outcome variable with predictive “risk mapping” that incorporates spatiotemporal data on the environment, climate and human population through the flexible class of generalized linear mixed models.

景观生态学及熵模型在荒漠化监测与评价中的应用

在对景观生态学和"熵"的概念及其特征进行分析的基础上,以承德市北部荒漠化地区为例,重点讨论了景观生态学中优势度指数、均匀度指数以及热力学中熵模型在荒漠化土地动态变化及评价中的应用.根据2001年8月31日Landsat卫星遥感TM数据,结合现场调查,通过景观熵值、植被覆盖度等指标综合评判,对研究样地荒漠化程度进行划分.结果表明:通过熵模型计算荒漠化景观系统的熵值,可以判断荒漠化景观发展趋势,也可以比较不同荒漠化景观的荒漠化程度.经过综合指标分析,判定丰宁县小坝乡属于重度荒漠化地区,围场县御道口属于中度荒漠化地区,该结论与实际相符合.      

火电厂清洁生产的可持续性分析与评估

从企业生态角度分析了火电厂清洁生产的可持续性;运用能值理论对火电厂清洁生产的可持续性进行了评估;以某发电厂采用清洁生产为实例进行了可持续性分析,结果表明:火电厂清洁生产的可持续性明显提高。     

The adoption of green business practices among small US Midwestern manufacturing enterprises

Manufacturers around the world green their businesses for a variety of reasons, including competitiveness, social responsibility, and external stakeholder pressure. However, small and medium enterprises (SMEs) are thought to lag behind larger ones in the adoption of green business practices. This paper explores the motivations for US Midwestern SMEs adopting a variety of green business practices, using a survey of 59 SMEs in the tool and die manufacturing industry. The majority of firms appear to be internally motivated to implement green practices – driven primarily by cost and competitiveness concerns, more than by social responsibility concerns. External coercive pressure from government or customers does not appear to be a significant motivation for these SMEs. However, informal pressure through government incentives and support programs, as well as mimetic pressure through peer learning via industry associations, appear to be more effective in helping these SMEs to further ‘go green.’     

Green jobs for the disadvantaged in British Columbia: the perspectives of non-governmental organisations and social entrepreneurs

This paper examines the actions and potential of green jobs for the disadvantaged, from the perspective of non-governmental organisations and social entrepreneurs. The populations of interest include: low-income, developmentally challenged, those with mental health or addiction issues, women, and First Nations. Findings indicate that green businesses and social entrepreneurs have uniquely engaged in social training and hiring strategies related to green jobs. The major challenges they face include a lack of policies that support the development of green jobs through social training and hiring. As a result of these findings, an argument is made for combining job and life skills for both disadvantaged populations and the agencies that serve them as well as building the capacity of employers to practise social hiring.     

基于Kaya方法的四个直辖市碳效率评价与比较

应用Kaya恒等式的计算方法对我国4个直辖市2005-2009年的碳效率进行了评价和比较分析,结果显示:4个直辖市碳效率的排序在2005-2009年间没有发生变化,4个城市的碳效率都处于上升态势。     

顶空气相色谱法测定水和废水中的邻二氯苯

采用顶空采样,填充柱分离,ECD测定水和废水中的邻二氯苯,在柱温150℃,进样室温200℃,ECD温300％下,邻二氯苯的保留时间为3．78min,该方法灵敏度高,最低检出浓度为0．02μg／L;精密度好,对标准样品六次测定的相对标准偏差小于3．9％;准确度高,加标回收率在95％～104％之间。操作简便、测定快速,克服了萃取法烦琐、有毒、易污染色谱柱等缺点。